Effects of Heat Treatment and Hydrogen Peroxide (H2O2) on the Physicochemical and Rheological Behavior of an Activated Sludge from a Water Purification Plant

被引：20

作者：

Hammadi, Larbi ^{[1
,2
]}

Ponton, Alain ^{[2
]}

Belhadri, Mansour ^{[1
]}

机构：

[1] USTO, LRTTFC, Fac Architecture & Genie Civil, Dept Hydraul, Oran, Algeria

[2] Univ Paris, lab Mat Syst Complex, UMR, Paris 13, France

来源：

ISWEE'11 | 2012年 / 33卷

关键词：

Activated sludge; temperature; rheological behavior; yield stress; viscosity; SEWAGE-SLUDGE; OZONATION;

D O I：

10.1016/j.proeng.2012.01.1207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work we describe the effects of heat treatment and of the addition of hydrogen peroxide on the physicochemical and rheological behavior of activated sludge produced in a water purification plant. An increase in temperature and dosing with H2O2 both induce a reduction in Chemical Oxygen Demand (COD) of the sludge. At the same time they cause a reduction in the ratio between volatile matter in suspension and total suspended matter (VM/SM). To describe the rheological behavior of the sludge, the Bingham model was used for modeling the viscoelastic behavior of the sludge. The non-Newtonian parameters of the Bingham model decreased with increasing temperature, and at the same time the apparent viscosity of the sludge decreased according to an exponential law. (C) 2012 Published by Elsevier Ltd. Selection and peer-review under responsibility of ISWEE' 11

引用

页码：293 / 302

页数：10

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